:root {
  --bg: #0b0d12;
  --bg-elev: #12151c;
  --text: #eef1f6;
  --text-muted: #9aa4b2;
  --accent: #6ee7ff;
  --accent-2: #8b7bff;
  --border: #1f2430;
  --radius: 14px;
  --max-width: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3 {
  line-height: 1.2;
  margin: 0 0 16px;
}

p {
  margin: 0 0 16px;
  color: var(--text-muted);
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 13, 18, 0.8);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}

.brand__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 12px var(--accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav__links a:not(.btn) {
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.nav__links a:not(.btn):hover {
  color: var(--text);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b0d12;
}

.btn--ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn--ghost:hover {
  background: var(--bg-elev);
}

/* Hero */
.hero {
  padding: 120px 0 80px;
  text-align: center;
  background:
    radial-gradient(600px circle at 50% 0%, rgba(110, 231, 255, 0.12), transparent 60%);
}

.eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  max-width: 760px;
  margin: 0 auto 20px;
}

.accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__subtitle {
  max-width: 560px;
  margin: 0 auto 32px;
  font-size: 1.1rem;
}

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* Features */
.features {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.features h2,
.about h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 48px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.card__icon {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.card h3 {
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  font-size: 0.95rem;
}

/* About */
.about {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.about__inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

.footer__inner {
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer p {
  margin: 0;
}

@media (max-width: 720px) {
  .nav__links {
    gap: 14px;
  }

  .nav__links a:not(.btn) {
    display: none;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}